1. The relative attraction of the nucleus for the electrons in a chemical bond is called
A. Ionization energy
B. Electron affinity
C. Electronegativity
D. None of the above
✅ The correct answer is option C.
Chemical Bonding MCQs
2. The ionization energy
A. Generally increases from left to right in a period
B. Does not change in a period
C. Increase from top to bottom in a group
D. Does not change in a group
✅ The correct answer is option A.
3. Which of the following will have the highest value of electron affinity
A. F
B. Cl
C. Br
D. I
✅ The correct answer is option B.
4. Which type of bond is formed by an overlap of p orbitals
A. Pi (π)
B. Sigma(Σ)
C. Both
D. Neither
✅ The correct answer is option C.
5. The octet rule does not always hold for which of the following elements
A. C
B. O
C. F
D. P
✅ The correct answer is option D.
6. Which of the solid does not contain a covalent bond
A. Copper
B. Ice
C. Diamond
D. Graphite
✅ The correct answer is option A.
7. Which of the following is the best explanation that CO2 is a non-polar molecule
A. Linear geometry
B. The dipole moment is zero
C. Sp hybridization
D. None
✅ The correct answer is option B.
8. Shielding effect across the period
A. Increases
B. Decreases
C. Constant
D. None
✅ The correct answer is option C.
9. Which one is not the absolute term of the element?
A. Ionization energy
B. Electron affinity
C. Electronegativity
D. Atomic size
✅ The correct answer is option C.
10. Which one has the maximum number of unpaired electrons?
A. 6X
B. 7Y
C. 9Z
D. 13W
✅ The correct answer is option B.